Flanged-joint casing for heat-insulating pipes.



No. 809,963. PATENTED JAN. 16, 1906.

MLJ. LOUGHMAN.

PLANGBD JOINT GASING FOR HEAT INSULATING PIPES. l

APPLICATION FILED AUG. 11. 1904.

MICHAEL J. LOUGHMAN, OF NEV YORK, N. Y.

FLANGED-JOINT CASING FOR HEAT-INSULATING PIPES.

Specification of Letters Patent.

Patented Jan. 16, 1906.

Application filed August 1l, 1904. Serial No. 220,336.

To all whom, it indy concern:

Be it known that I, MICHAEL J. LOUGHMAN, a citizen of the United States, and a residentof New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Flanged Joint Casings for Heat-insulating Pipes, of which the following' is a specification.

The subject of this invention is a novel nonconducting casing for the flanged joints of heat-insulating pipes, and has in View more particularly a durable, simple, efcient, and comparatively inexpensive construction for the purpose above mentioned, which construction can be readily and conveniently applied and secured in position.

lith the above considerations in View the novel non-conducting casing comprises semicylindrical sections of heat-insulating material and having matching end flanges disposed in a plane at an angle to the body of the casing and forming contracted openings for the passage of the pipes, said semicylindi'ical sections liaving embedded therein a metal reinforce, the edge portions of which aie turned at an angle for the puipose of reinforcing the end flanges.

I preferably secure, by cementing or otherwise externally to the peripheral and flange surfaces of the sections, a covering of canvas, which is conditioned to form abinge or flexible connection for said sections at one side, while at the opposite side the fabric presents a flap designed to overliethe immediate edges thereat, and thus when the clamping-bands areY applied a masked joint at said meeting edges will result, and thus promote the eiiciency of the non-conducting casing when secured in position.

In the accompanying drawings, forming part of this specification, Figure l is a perspective view of the novel non-conducting casing siiown as being in a closed and secured position. Fig. 2 is a vertical section in a plane immediately external to the flanged joint of the pipes, the casing being shown as secured in position. Fig. 3 is a sectional view of parts illustrated in Fig.v 2, the plane of section being that indicated by the broken line 3 3 in the last-mentioned ligure.

Similar reference characters are employed to designate corresponding parts in the three figures wherein they occur.

A and B designate the two semicylindrieal sections of the non-conducting casing, said sections having end flanges a and adapted to present when placed together contracted end openings d, but one of which appears in Fig. l. These sections A and B are molded of a suitable heat-insulating material. A satisfactory composition for this purpose comprises a combination of magnesia and asbestos both reduced and combined together with a suitable binder to form a plastic adapted for molding.

I secure externally to the sections A and B, by cementation or otherwise, acoveringC, of canvas, which not only extends Vover the periplieries of both sections, but over their end langes (t and as well, the meeting edges `of both sections A and B also having portions of the canvas folded over and secured thereto. The canvas covering C is so conditioned that it extends continuously at the adjacent peripheral portions of the sections A and B, and thus constitutes a hinge connection c for said sections at one side. At the opposite side the canvas presents an extended flap c', adapted to lie on the periphery of the section B, considerably beyond the meeting-joint b, so that said joint will be masked, and when the clamping-bands D D are applied and engaged the Hap will contribute to promote the securement and efficiency of the closed joint at this point.

In the operation of molding the sections A and B each semicylindrical section has embedded therein a metal reinforce E, the body of which reinforces the peripheral portion of its section, while edge portions c e at right angles to said body perform a corresponding oliice for the end lianges a as the case maybe.

It will be appreciated that not only are the peripheral portions of the sections A B braced by the metal reinforces and the end flanges of said sections correspondingly conditioned by the turned-edge portions c e of the reinforces, but that by reason of the peculiar configuration of the reinforces a like bracing effect is secured at the angular or corner parts of the sections. Reinforcing the end ianges of a casing of tbe character described is as important as bracing the peripheral portions of said casing, inasmuch as said flanges by reason of their free edges and itheir angular mergence with the peripheral portions are specially liable to injury through shocks and blows and through strains incurred both before and after the casing has been adjusted in position. The

advantages referred to are greatly augmented by the positive incorporation of the metal reinforces in the structure of the casing-sec- IIO tions, which incorporation results in the further advantages of simplicity and compactness of construction, as well as extreme convenience in the application of the casing.

The adhering canvas covering avoids liability of the disintegration of the composition or material of which the sections are formed. By extending the canvas covering over the meeting edges of the sections injury by chafing at said edges is avoided.

It will be appreciated from the foregoing that the novel joint-casing is not only highly useful, but can be readily applied or removed whenever desired.

I do not wish to be understood as limiting myself to the precise construction and arrangement of details shown and described, but reserve the right to all modifications within the scope of invention.

Having now described my invention, what I claim as newand desire to secure by Letters Patent, is-

1. A Hanged-joint casing comprising semicylindrical sections of heat-insulating character and embodying end flanges forming contracted openings, and a metal reinforce for each section and having turned-edge portions, said reinforce being positively combined with and reinforcing the peripheral portion and end flanges respectively, of its section.

2. A flanged-joint casing comprising semicylindrical sections of heat-insulating character and embodying end flanges forming contracted openings and angularly disposed with respect to the peripheral portions of their sections, and a metal reinforce for each section, having turned-edge portions, said reinforce being embedded between the inner and outer surfaces of the peripheral portion and end flanges respectively, of its section.

3. A lianged-joint casing' comprising' semicylindrical sections of heat-insulating character and embodying end flanges forming contracted openings and angularly disposed with respect to the peripheral portions of their sections, and a reinforce of Wire fabric, for each section and having turned-edge portions, said reinforce being positively embedded in and reinforcing the peripheral portion and end lianges respectively, of its section.

4. A flanged-joint casing comprising semicylindrical sections of heat-insulating character and embodying end flanges forming contracted openings, a metal reinforce for each section and having turned-edge portions, said reinforce being positively combined with and reinforcing rthe peripheral portions and end flanges respectively, of its section, and a textile-fabric covering secured to the peripheries and end flanges of both sections, as well as to the contacting edges of said sections, said covering being .disposed to form a flexible connection for both sections at one side and a joint-overlying flap at the vother side.

Signed at New York, in the county of New York and State of New York, this 23d day of July, A. D. 1904.

MICHAEL J. LOUGHMAN.

Vitnesses:

WILLIAM PAXTEN, HELEN E. MAHER. 

